Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2024-02-27 17:01:56.121 ERROR 37484 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

The dependencies of some of the beans in the application context form a cycle:

┌──->──┐
|  com.github.pagehelper.autoconfigure.PageHelperAutoConfiguration
└──<-──┘

Action:

Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.

Disconnected from the target VM, address: '127.0.0.1:62298', transport: 'socket'

Process finished with exit code 1
 

出现的bug大概意思是：不鼓励依赖循环引用，默认情况下是禁止的。更新您的应用程序以删除 bean 之间的依赖循环。作为最后的手段，可以通过将 spring.main.allow-circular-references 设置为 true 来自动中断循环。

bug解决
SpringBoot2.6 正式发布：循环依赖默认禁止。如上提供解决方案为将spring.main.allow-circular-references 设置为 true，来自动中断循环。

如果是.properties文件，在文件中添加

spring.main.allow-circular-references=true

如果是.yml文件，则在文件中添加

spring:
  main:
    allow-circular-references:true

再次启动项目，就可以正常运行了